2 * Copyright © 2009 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
24 * Eric Anholt <eric@anholt.net>
31 #include "hash_table.h"
34 key_value(const void *key
)
36 return *(const uint32_t *)key
;
40 uint32_t_key_equals(const void *a
, const void *b
)
42 return key_value(a
) == key_value(b
);
46 uint32_t_key_is_even(struct hash_entry
*entry
)
48 return (key_value(entry
->key
) & 1) == 0;
52 main(int argc
, char **argv
)
54 struct hash_table
*ht
;
55 struct hash_entry
*entry
;
58 uint32_t i
, random_value
;
60 ht
= _mesa_hash_table_create(NULL
, uint32_t_key_equals
);
62 for (i
= 0; i
< size
; i
++) {
65 _mesa_hash_table_insert(ht
, i
, keys
+ i
, NULL
);
68 /* Test the no-predicate case. */
69 entry
= _mesa_hash_table_random_entry(ht
, NULL
);
72 /* Check that we're getting different entries and that the predicate
75 for (i
= 0; i
< 100; i
++) {
76 entry
= _mesa_hash_table_random_entry(ht
, uint32_t_key_is_even
);
78 assert((key_value(entry
->key
) & 1) == 0);
79 if (i
== 0 || key_value(entry
->key
) != random_value
)
81 random_value
= key_value(entry
->key
);
85 _mesa_hash_table_destroy(ht
, NULL
);